Analysis of distribution shift.
We present the effect of varying the threshold values on the localization performance along with the distribution spread of foreground and background regions. The change in MaxBoxAcc at different threshold for CUB test set is presented in Figure REF . We compare our results with CAM [1]}, HaS [2]}, ACoL [3]}, SPG [4]}, ADL [5]}, and CutMix [6]}. For all of these related methods, we can see that the MaxBoxAcc quickly drops to zero as the threshold increases. Due to this, it is very difficult to find the optimal threshold for each image and makes these methods unfeasible to deploy in practical scenarios. In contrast, the output of our method is less susceptible to the threshold.
